Improved boot-ceimping machine



H. OONKLIN. BOOT GRIMPING MACHINE.

No. 66,566. Patented July 9, 1867.

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HELI GONKLIN, OF KIRKW-OOD, NEW YORK. Letters Patent No. 66,566, dated July 9, 1867.

IMPROVED BOOT-ORIMPING- MAGHINE.

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TO ALL WHOM IT MAY CONCERN:

Be it known that IjiHELI CONKL-IN, of ,Kirkwood, in the county of Broome, and State of New York, have invented a new and usefiil impr0vement.on Crimping Machines for Boots; and I do hereby declare that the following is a full, clcar,'and exact description of the construction and operation of the same, reference being bad to the annexed drawings, making-a part of this specification, in which Figure 1 is a perspective view.-

Figure 2, a section ifepresenting the clamp.

Like letters in eachl'figure represent corresponding parts.

The object of my iny ention is to construct a boot-crimp which shall be available not only to large establishments, but for common shop use, possessing all the "strength and efiiciency with less complication and expense than those now in use. l

The nature of my improvement consists in the arrangement and construction of an 'adjustable clamp, one jaw of which is stationary, the other slightly yielding, and held in its position by means of a nut and screw. The metallic crimping form not being attached is placed in its position by hand, and pressed between the jaws of the clamp by a lever, thus accomplishing theoperation in a more natural and efiective manner. I construct my device either of wood or some metallic substance, but for common shop use prefer the former, on account of handling it more conveniently.

The base or sole piece A has astandard, B, attached to the end, in which the end of the lever C works. The centre of the slot D, which receives the end of said lever, should be made long enough to give room for two.

holes, for the purpose of changing the fulcrumpin E from one hole to the other, so that one will be a little lower and the other a little above a lino running parallel to the base A, and intersecting the apex of the clamp F.

This, in connection with the projections G G on the metallic form H for the lever to bear upon, gives the required movement necessary to give the, leather the proper crimp. I attach to the base A, near the standard.

B,.an adjustableclamp, F, with a bolt and screw-nut forholding the jaws in their position while crimping. To the standard B I attach a lever, C, of sufiicient length and strength to perform the operation. The form H is constructed of brass 'or other suitable metallic substance, with the working edge rounded and burnished. I

also make two projections, G G, on the upper edge, for the .lever to bear upon. If the lever is made of wood, I-

face the bearings for the projections G G on the form H with iron.

When I use my invention, I first adjust the jaws of the clamp, saturate the piece of leather K with water, and place it over the top. I then place in position the form H, and drop the lever until it rests upon the heel projection GE, then press it down until the lever strikes the other projection G. I then change the fulcrum of the lever to the lower hole in the slot D, and finish the operation. The screw is then loosened up and the work removed. I

I am aware that there are now in use crimping machines for boots that are in some respects similar to my improvement. They are heavy, cumbersome, complicated,'and expensive, consequently not available to the common mechanic, while my improvement is light, portable, and manufactured at one-quarter less expense. At the same time the operation.can be performed more expeditiously and the work finished in a more satisfactory manner. I therefore disclaim all similar arrangements, and confine myself to those features of my improvement that are new and useful. 7 g

: I claim the form H, with its projections G G, in combination with the arrangement and construction of the machine, substantially as described and for the purpose set forth.

HELI C'ONKLIN.

Witnesses:

F. A. DUNKER, J. G. Pnnsons. 

